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2004 Buick Rainier CXL 4.2L DifferentialVIN: 5GADT13S84Hi guys. this car came to me with a terrible clunk from the
rear on a hard turn. My rear specialist diaginosed it as a
bad posi unit. I put in two used rears and the clunk is
still the same. Im beginning to suspect it is comming from
the transfer case or front...

2004 Chevrolet Silverado 2500 HD 6.6L Excessive EmissionsHi all, I have this Duramax LLY engine that is leaking
diesel fuel from the number 1 injector. It is spraying out
of the gap where the high pressure line passes through the
nut that mounts the line to the injector. I can't find any
cracking on the injector, th...

2006 Chevrolet Cobalt LS 2.2L MIL Lamp onVIN: 1G1AK15F46Again I would to thank all of you for ur time and wisdom. After some testing...Alcohol content was approx 5%,Unplugged MAF with little to no change in trims after hard reset,triple checked for vac and exhaust leaks,no misfires what so ever as far as the scanne... Trouble codes: P0171.